Q-274 BUNA 70 Q RING

The QH70274 is an AS568-274 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 9.984 in (253.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 10.262 in (260.65 mm). This quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material holds up against greases and lubricants, petroleum-based oils, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ozone and direct sunlight or automotive brake fluid. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

Typical settings include fluid power, general industrial maintenance, and agricultural equipment.

Reference part number QH70274 when ordering; the item is sold individually. Unit weight is approximately 9.3875 g. Review your operating media and conditions against this specification before installation.